SpringMvc 拿不到Put请求的参数

web.xml加入并且用 x-www-form-urlencoded方式提交

<filter>
<filter-name>httpPutFormContentFilter</filter-name>
<filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>httpPutFormContentFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>